One moment please while we configure for you...

Welcome to RTS. Please specify your country so we can customize your experience.

The Americas
Asia & the Pacific Rim
the Middle East, & Africa
Latin America

Manual Authorization Required

You must be manually authorization to access this file



Noise Cancellation

The 38T cancels noise best when held very close to the mouth, and it discriminates against all sounds more than ½-inch away. A position at one side of the mouth is best to minimize popping, hissing and breathing sounds when speaking.

Microphone Gain Adjustment

The gain is adjustable through an opening in the side of the microphone housing using a small, flat-blade screwdriver. Clockwise rotation of the control increases gain. Adjustment by a qualified avionics technician is recommended, as excessive gain can cause transmitter overload distortion.

FAA TSO Approval

The 38T microphone is certified for aviation use under FAA TSO C58.
Color Black
Cord Length 6 ft (1.8288 m)
Frequency Response 300-3000 Hz
Impedance 50-600 Ω
Microphone Sensitivity -51 dBV/Pa
Microphone Type Close Talking Differential, Electret Element
Weight 9.77 oz (277 g)


Hover over image to zoom
Click image for full-size
Optional accessories
may be shown

Telex is part of the Bosch Communications Systems family of brands, offering the world's most complete portfolio of professional audio and communications solutions.

Share this with:
E-mail Email